Plate-steel wicket gate for turbines



Sept. 11,-1928. 1,683,781

G. A. JESSOP PLATE STEEL WfCKET GA E FOR TURBINES Filed Sept. 25.- 192's :5 Sheets-Sheet 1 attozn e1 G. A. JESSOP PLATE STEEL vmzcxm GATE FOR 'runsmms Sept. 11, 1928.

Filed Sept. 25, 1526" 3 Sheets-Sheet .2'

\IIIIIIIIIIIII Sept. 11,- 1928. 1,683,781

G. A. JESSOP PLATE STEEL WICKET GATE FOR TURBINES Filed Sept. 25, 1926 3 Sheets-Sheet 3 danvemkx (Z 6:930 661 22y 05 I p attain:

Patented Sept. 11 T1928.

* UNITED s"r.\ rl5s P TENT -was;q

GEORGE. Jnssor, onYoRKrEnNsYLvaNIA; nssreuon was. OR AN SMITH com PM, [or YORKQPENNSYLVAIIIA, aconronarron.

prime-STEE w exn'r earn r on ErURBInEs;

Application flld'September 25', 1926. Seria1'No.- 137,796.

This invention 'relates to a plate steel wicket gate for use in connection with hy-- draulic turbines or water wheels.

. {As readily understood, these gates are 5 opened and closed tocontrolthe quantity,

of water flowing to a turbine runner to regulate the H. 1 output. These gates have usually been cast in one piece of metal, either cast-iron, steel or. bronze, andthe advantage of the plate steel gate is that caststeel gate is to generally improve this class of gates b applying the stems thereto in a strong and durable manner by utilizing reinforcing or bracing means therefor extending through the guide surfaces and secured positively and flush in the lates forming the said surfaces, instead 0 abutting the reinforcing or bracing means against the plates, with material advantage in the formation of the gate. 1 I

A further object :of the invention is to provide a gate of the class specified with conduit or tubular means in the stems to facilitate a thorough and :practical'lubrication of the bearings for the" gates, and

thereby adding to the durability of the gates. V a

-With the foregoing: objects and other structural advantages which will hereinafter ap ar, the invention consistsfin the preferre constnuctionand arrangement of parts described in the subjoined specifica,-.

tion and pointed out in the claims.

In thedrawings: Y I

Figure 1 is atop plan view of apart of the improved gate showing the improved features 'thereofin dotted lines;

Fig. 1 is a similar-view of the, remaining.

portion ofthe improved gate; 7 V

' Fig. 2is a side elevation of a portion of the gate, showing theimprovements in full and dotted lines; i a a A Fig. 3 is an enlargedypartial transverse filled 3 with welding material. 9 and 10 are precisely similar and are cut parts; i

Fig. 4 is atop plan-view'ofthe gate in modified form; I H

Vertical. section of the gate brokenaway in 'Fig. 5 is an enlarged transversesection on,

the line 5-5, ofl igure 4;.and y a Fig; 6 isa detail side elevation, partially broken away, of a portionof the structure, showing a slight .modification.

;'Referring, t0' F igjs'. l, to 3, inclusive, the guidesurfaces ofthe gates are formedof two sheets 5 and 6, .whichare cut out offlat, standard sheetysteel and then pressed to the proper shape ondies in:v a hydraulic press. The upper and lower pivots or stems 7 and 8 are pieces of standard size of round bar iron, which are unfinished-where covered by the guiding plates constituting the guide surfaces and finishedutrue to s'izewhere-they. extend outof the gate at the top and bottom.

To each of the stems 7 or 8 are Welded ribs or plates 9 and 10 which are in general of somewhat'heavier material than the guiding plates 5a and 6. The-ribslO arepreferably narrower than the ribs 9,-but both ribs9 and 10 extend laterally entirely to the outside or guide surfaces of the guiding sheets5and 6, and furthermore, the outer extremities'of guidingsurfaces of the sheets. The guiding sheets 5 and 6 are notched'out as at 9 and provision' for welding by suitable material as at 9' and .10 see'Fig. 3, and also the notches donot have to be made toexact dithesaid ribs are welded to the guiding sheets with their ends coincident with the outer mensions but can be shaped approxi ately,

the 'spaces around the ends of the ribs being The notches as above explained through the guide sheets lndimensions proportionate. to the dimensions of-1ther1bs9and 1.0 hut'of greater dimensions than the latter, as. above ex- In constructingtheQimproved gatefthe i opposite properly shaped guiding members,

pivot means arranged between the inner sides of said members, and elements connected to the pivot means and extending through and secured to the said members for holding the pivot means in place, the said means terminating coincidentally with the outer sides of the members and welded to the latter.

3. A plate steel wicket gate comprising opposite continuous plate steel guiding members, stems between said members, and means extending laterally through the mem bers for holding the stems in place between the members, the said means extending through openings formed in the members and terminating coincidently with the outer surfaces of the members and welded to the latter.

4. A plate steel wicket gate comprising opposite properly shaped. plate steel guiding members, stems spaced between the inner of said members, and'ribs extending laterally from the stems through the walls of said members for holding the stems in place be tween the membersthe said means terminatiug coincidently with the outer surfaces of the guiding members.

(LA plate steel wicket gate comprising opposite properly shaped plate steel guiding members and stems, the stems extending partially through the gate, and means extending laterally through the members and terminating coincidently with the outer surfaces of the said members for holding the stems in place, the means Varying in width.

7. A plate steel wicket gate comprising opposite properly sh ed plate steel guiding members, stems exten ing partially through the members and ribsvarying in width extending laterally through the members for holding the stems in place between the mem: r V bers, the said ribs being wider at the ends of the gatesthan interiorly thereof and extending through openings formed in the 1118111? bers and terminating coincidently with the outer surfaces of the members and secured to the latter;

8. A plate steel wicket gate comprising opposite properly shaped plate steel guiding.

members, stems extending partially through I' the said members, the said stems being lon gitudinally bored for receiving lubricant,

the inner terminal of the one stem having a pipe extendingthrough the bore of the, 0pposite stem to convey the lubricant from one stem to the other and also serve as additional reinforcing means, and ribs extending laterally through the members for holding the stems in place between the members, the ribs terminating coincidently with the outer surfaces of the latter.

members and welded to the 9. A plate steel wicket gate comprising opi posite properly shaped plate steel guiding.

members, and stems of difierent length disposed in the ends of the members and extending partially through the latter, the

stems being tubular and interiorly connected by a pipe to permit lubricating grease to be forced through one stem into and through the other.

' 10. A plate steel wicket gate comprising opposite properly shaped plate steel guiding i members, and stemsof differentlength disposed in the endsof the members and extending partially through the latter, the stems being tubular and the. one stem having aI'pipe connected to the inner end and extending through the opposite stem. 11. A plate steel wicket gate comprising opposite properly shaped plate steel guidingmembers, and stems of different length disposed in the ends ofthe members and extending partially through the latter, the stems being tubular and the one stem having a pipe connected to the inner end and extending through the opposite stem, the stems having brace means extending through and terminating with the outer surfaces of the members and secured to the latter.

In testimony whereof I have hereunto set my hand.

GEORGE JESSOP. 

